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WorksheetsPhysics CA3Wk9
Total questions: 25
Worksheet time: 26mins
Name
Class
Date
1.
What happens to the force between two charged objects if you triple the magnitude of one charge?
a)
1/3X
b)
3X
c)
1/9X
d)
9X
2.
What happens to the force between two charged objects when you double the distance between them?
a)
2X
b)
1/2X
c)
4X
d)
1/4X
3.
What happens to the force between two charged objects if you reduce the distance between two objects from 30 cm to 10 cm?
a)
1/3X
b)
20X
c)
3X
d)
9X
4.
The image shows two charged particles with a force of 2.4 N. What would you predict the force of interaction would be when the distance doubles?
a)
4.8 N
b)
1.2 N
c)
.6 N
d)
.3 N
5.
Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C.
a)
-1.5E-11 N
b)
2.5E-11 N
c)
-2.5E11 N
d)
-7.5E-10 N
6.
Two 10¢ coins (dimes) carrying identical charges are lying 2.5 m apart on a table. If each of these coins experiences an electrostatic force of magnitude 2.0 N due to the other coin, how large is the charge on each coin? (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2)
a)
52 μC
b)
5.2 μC
c)
6.7 μC
d)
26 μC
7.
What will happen to the Electrostatic Force if the charge of one particle is increased 6 times?
a)
The force will decrease 6 times
b)
The force will increase 6 times
c)
The force will increase 36 times
d)
The force will decrease by 1/6
8.
A cloth has a positive charge and can attract some paper scraps when held near them, what kind of charge can the paper scraps NOT have?
a)
Positive
b)
Negative
c)
Neutral
9.
The electrostatic force between two charges located 2 meters apart is 0.10 N. What will the force be between these charges when they are located 1 meter apart?
a)
0.40 N
b)
0.20 N
c)
0.10 N
d)
0.05 N
10.
In a good insulator, electrons are usually
a)
free to move around
b)
free to move around after an impurity has been added
c)
semi-free to move around
d)
tightly bound in place
11.
The reason a charged balloon will stick to a wall is that
a)
the charge is slightly sticky and acts like glue
b)
electrons transfer back and forth between the wall and the balloon
c)
induced opposite charges in the wall are closer than other wall charges
d)
balloon material simply sticks to walls
12.
Which of the following procedures will double the force on two point charges?
a)
halving the distance between the charges
b)
doubling the magnitude of one charge
c)
halving the magnitude of one charge
d)
doubling the distance between the charges
13.
MCQ 012
A ray of light is incident on a plane mirror and the angle of reflection is 50 degrees. What is the angle between the incident ray and the reflected ray?
A ray of light is incident on a plane mirror and the angle of reflection is 50 degrees. What is the angle between the incident ray and the reflected ray?
a)
A. 50 degrees
b)
B. 25 degrees
c)
C. 90 degrees
d)
D. 100 degrees
14.
a real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
15.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
16.
This image is.....
a)
inverted and smaller
b)
inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
17.
This image is...
a)
Inverted and smaller
b)
inverted and bigger
c)
not inverted and smaller
d)
not inverted and bigger
18.
An image that you can see , but does not really exist is called which of the following?
a)
Real Image
b)
Fake Image
c)
Virtual Image
d)
Digital Image
19.
An object of height 4 cm is placed 10 cm away from a concave lens of focal length 6 cm as shown below.Image is
a)
virtual.inverted
b)
virtual,upright
c)
real,inverted
d)
real,upright
20.
The heavier a particle, the _____ it moves.
a)
slower
b)
less
c)
faster
d)
more
21.
Must have a medium to travel through
a)
mechanical waves
b)
medium waves
c)
electromagnetic waves
d)
space waves
22.
Can travel through space
a)
electromagnetic waves
b)
space waves
c)
transfer waves
d)
longitudinal waves
23.
Maria burned herself when she picked up a hot iron skillet from the stove. What method of heat transfer caused the burn?
a)
Convection
b)
Conduction
c)
Specific Heat
d)
Radiation
24.
Waves that require a medium are known as?
a)
Mechanical Waves
b)
Electromagnetic Waves
c)
Light Waves
d)
Mass Waves
25.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal
d)
transverse wave
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